Nino Bahai is a group of Yongquan in Nino Village between Yamanaka Lake and Kawaguchi Lake in Yamanashi Prefecture, Japan. The so-called "Eight Seas" is actually eight ponds, all small, namely: Yudang Pool, bottom no pool, dumpling pool, turbid pool, Yongchi, mirror pool, Dianchi pool and exit pool, the average water temperature is about 13 degrees Celsius, the water quality is clear and sweet, known as "Japan Jiuzhaigou". It is said that Ninno Bahai was there 1200 years ago, is the melted snow water of Mount Fuji filtered through the formation of eight clear water springs, is the designated national natural scenic area of Ninno area, in 1985 selected "Japan famous water hundred choices", is one of the new Fuyue Baijing. The scenery here is very exquisite, small everywhere, but neatly trimmed, the pond is large and small, and some are hidden in the homes of residents. There are many shops around, selling tourist souvenirs and some specialty foods.